Bodkin

A dagger. (Welsh, bodegy a small dagger.)

Bodkin

When he himself might his quietus make with a bare bodkin.
(Hamlet, iii. 1). A stiletto worn by ladies in the hair, not a dagger.
In the Seven Champions, Castria took her silver bodkin from her
hair, and stabbed to death first her sister and then herself. Prexida
stabbed herself in a similar manner. Shakespeare could not mean that a
man might kill himself with a naked dagger, but that even a hair-pin
would suffice to give a man his quietus.

Bodkin

To ride bodkin. To ride in a carriage between two others, the
accommodation being only for two. Dr. Payne says that bodkin in this
sense is a contraction of bodykin, a little body, which may be squeezed
into a small space.

“If you can bodkin the sweet creature into the coach.” —Gibbon.

“There is hardly room between Jos and Miss Sharp, who are on the
front seat, Mr. Osborne sitting bodkin opposite, between Captain Dobbin
and Amelia.” —Thackeray: Vanity Fair.